Asteroid Radar Database
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232691 (2004 AR1)
Classification: APO [NEO, PHA]
H:19.82 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  NEODyS-2 page for this object   |  ESA SSA page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2013 Aug Goldstone Goldstone 8560 [G]
2013 Aug Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2021-07-05 00:00 TT from MPO596100 (heliocentric ecliptic J2000)
Element Value Units
e 0.469499
a 1.5761168 AU
i 9.07775 deg
om 336.52536 deg
w 50.25854 deg
ma 328.94193 deg
n 0.49810565 deg/d

Link to complete orbital information at Minor Planet Center

Earth Close-Approach Data (+/- 10 years)
date nominal distance RTT SNR/run at Arecibo
2012-01-08 00:41:00 0.47558 474.6 0.1
2013-08-25 02:34:00 0.05430 54.2 112.0
2015-08-13 15:37:00 0.07481 74.7 37.0
2017-08-04 12:36:00 0.19171 191.3 1.4
2019-07-28 14:04:00 0.31972 319.1 0.2
2021-07-20 23:19:00 0.45000 449.1 0.1

Link to complete Close-Approach Data on SBDB at JPL